There's a hardened "version" of signal called molly
HappinessPill
Indeed, the majority of us aren't made to worry about arbitrary problems that are beyond our control constantly more than trivial and survival related problems.
I think undervolting is bursting out of the niche area now for some reason, I've seen articles about it in unrelated sites.
Why are people talking about undervolting hardware now? It is because of Nvidia burning connectors?
Some affixes and suffixes also say the category of a medication or effect, they are very useful, but they are not based in the brand name, but the drug name.
Also because most phones have operational system's that are more secure than Windows, so a app is a easy way to block everybody that don't fit a profile of optimal users and avoid problems/hacking.
Companies dream of a closed internet accessible only from a controllable environment.
I'm still waiting people understand that the way Trump treat Zelensky isn't new in any way, most people are just aware of it now because it happened in Europe.
Both signal and molly are considered safe, a lot of apps use the same protocol as signal, most risk come from messages leaks before the encryprion happens.
Unfortunately, I'm not aware if they did external audits, but both codes are available in github.